Railway car



July 10, 1928. 1,676,343 I Y w. o. MOKAMEY RAILWAY'CAR r I Filed Jan.. s, 1926 5 Sheets-Shget 1 w is:

July 10, 1928. v 1,676,343

w. o. MOKAMEY RAILWAY CAR Filed Jan. 8, 1926' v 5 Sheets-Shet 2 July 10, 1 928. I 1,676,343

W. 0. MCKAMEY RAILWAY CAR Fi d Jan. 8, 1926 5 Sheets-Sheet lllllllllll Patented July" 10, 1928.

ii arra- STATES PAT WT 1' 1 WILLIAM o. MQKAMEY, or KNOXVILLE, TENNESSEE.

RAILWAY CAR.

Application file d anuary My improvement relates particularly to railway cars having hinged bottom doors adapted to be closed for holding a .load of material and to be r ased for dischargi hellmteriall r v V For examples of such cars, I refer to United States Patent, No. 1,268,344, granted to..Charles A. Griffith, June 4, 1918, and

United States Patent No, 1,268,390, granted of the car and the rear door being-hinged to a cross shaft which is located between the two car axles. In said car the axles extend across the discharge openings when the doors have been turned downward on their hinges for the dischargeof the load in the car. Thus the axles I hindering the discharge of the load. If large lumps of coal form apart of the load, the axles may prevent such load from being discharged.

One of the objects of this invention is to provide for discharge openings] substan-,

tially as largeas the bottom doors. To this end axles extending across the car frame are not used. In lieu of these continuous axles,

short or stubaxles are applied to the side frame members or side sillsof the car in such outside of the frame.

manner as to allow mounting the car wheels leaves each of the two discharge openings approximately as large as one, half of the car bottom.

In the accompanying drawings,

Fig. 1 is a side elevation of a car and a portion of a track illustrating my improve-.

ment; 3 u

Fig. 2 is a plan of the car shown in Fig. 1; Fig. 3 is a transverse upright section on the'line, 33, of Fig. 2, whereby therear bumper is omitted; I Fig. 4 is a bottom view of the car, portions being broken away;

' Fig. '5 is a longitudinal, upright section dischargedits load.

Refer ring to. said drawings; A, A are,

constitute 7 obstructionsv This arrangement V 8,- 1926. serial No. 80.062.

.Fig. 6 is an upright, transverse section" on'th'e line, 66, of toward'theleft, r l

Fig. Tis an enlarged upright, transverse section on the line, '7.7, of Fig. 1, lool ing toward the left; I ,I Y 4 Fig, 8 is a horizontal section-on the line, 8-8, of Fig.' -1; Fig. 9 is an upright, transverse section FigsQl, and 8, looking on the line, 99, of Fig. 1, looking toward the right F 10 is anupright, middle longitudinal section, showing thecar directly after it has track rails resting on ties", & 'B,'B are ordinary car wheels applied to the outer ends of short orstub. axles, C and C D is. the

body of the car. Dtaretheiside beams or. i

sillsforming portions of "the car frame, -'the ends of which beams are "joined to, and stayed bythe bumpers, D; D, D are the end walls of the body," i

The end of the carat the right, as vie'wed int-hefdraiwings, is the forward end of the car audit is to be understood that the-car moves forward for dumping and for closing the doors after the load has been discharged from the" car. The'discharge is downward between therails, A, and'theplace at which the discharge'is effect ed is calledthe dump ing station.v Beneath the rails, A the mate"- rial discharge from the car may be received by a chute or another car orany ther suitable de'vice,'not' shown. i

is the forward door.- Thisis placed between the side Sil s and has its forward end hinged to the horizontal hinge rod, E by means of any number ofhinge mei'nbers, Ff. Said rod has its ends supported by, the side sills. Said door extends rearward beneath the line of-the forward stub axles,C, and is then extended obliquely. rearward and tipward and adapted to be engaged and held by thesecond or rear "door as will now be described. I I

The second or rear door, E ,is placed between the side sills and'has its forward end secured by any number of hinge members, Ff, to the horizontal, transverse, hinge rod, E; having'its ends supported by the side sills midway-between the ends of the car The" are turned obliquely upward between the side sills. The upper faces of the hinge members, 13;, are concentric to the hinge rod,

The adjacent end edge of the door, E is similarly curved and rests upon and is secured to said hinge members. The rear end of the rear door is normally supported by latch mechanism hereinafter described.

, The rear end of the forward door is extended rearward far enough to permit it to rest upon the forward edge of the rear door when the two doors are in the raised or closed position. Each of the doors may be strengthened by having angle members, E attached to its side edges. 7

On the rear end of the car and in an upright plane transverse to the length of the car is a large bell crank, F, pivoted at F to the car.

' Saidbell crank has a downward-directed hook, F adapted to extend beneath'the ad-' acent or arm,'F on the rear of the rear door the bell crank being so arranged as to bring its pivot, F above its hook,

whereby the. arm bearing the. hook may swing downward and away'from the upright, middle, longitudinal plane of the car while the arm, F of the bell crank extends horizontally outward and by its predominating weight tends to tilt'the bell crank so as to move said hook toward said plane. Said book has a bevel edge, F adapted to be engaged by the adjacent'arm or bar, F when the latter is carried upward by the upward movement of-the rear part of the door into the closed position; V

WVhen said bar, F thus rests on the hook,

F said door is held firmly in its upper or closed position,and this condition continues until said hook is moved outward far enough to allow the arm, F to descend." Said hook is made tom-ove outward by raising the h'orizontal arm, F of the bell crank. To cause said arms to raiseautomatically, a cam member, r is placed atone side of the track (the left hand side is shown in the drawi ng) in position to engage the lower edge of the bell crank arm, F and cause said arm'to move upward on said cam member during the further forward movement of the car, the arm, F being extended far enough to bring said cam member into the path of the arm. A spring. A, may be applied to the bell crank to aid in holding the crank in normal position'in opposition to jolting.

A foundation plate, G, is laid into each of the side sills, D between the flanges of said sills and along the )arts of said sills to which the stub axles, and C and the hinge rod, are a plied. At each end of said plate, rivets, extend through the plate and the upright web of the side sill where, y said plate is secured to the sill; Between each end and the middle of the length of said plate, a brace strap, I), is applied ward over the outer face of the foundation.

plate. Rivets, G extend through said straps and the foundation plate and the up right web of the side sill, D The plate, Ur, is preferably a steel castin Near each end of the foundation plate, a horizontal bearing, G is formed integral with said plate and extended inward through the upright web of the side sill. Inaxial line with the bearing, G is a pedestal box, G also: integral with said plate.

A still) axle, C, rests in the bearing," G and projects inward through the bearing and receives the nut, C. At the outer face of the plate. G,'the stub axle has an annular'fialnge, G which bears against the outer face of the foundation plate when the nut, C is drawn against the inner end of 'the bearing, G The axle,C, projects outward farenoughto enter the hub, B of the wheel, B, the hub of the wheel extending into the pedestal box, G A part of said hub within said. pedestal box has a circumferential channel, B Ascrew, B extends through the pedestal box, G and into said channel. Bythis means, the hub is held against end wise movement on the stub axle.

Each end. of the hinge rod, E extends through the upright web of the side sill, D and through the foundation plate, G. At the inner side of the sid'e'sill, a nut, E is threaded around the rod, E, At the outer face of thefoundation plate, a nut, E, is threaded around the rod, E By driving these two nuts against the adjacent faces, said rod will be held'firmly forthe support ofthe doors and also for givingstability to the side sills-preventing them from bending sidewise or twisting.

lllil Above each end of the hinge rod, E a

bearing, H,'is seated on the upper flange of the'adjacent s1de' 's1ll,'D and secured thereto by means of rivets and screws; A stay.

rod, H has its ends resting in the bearings, H. At the inner end of each bearing, said rod has a shoulder, H adapte'dlo rest against the bearing. Each end of said rod extends through the adjacent bearing. A nut, H is threaded around eachsuch end.

B drivin saidnuts inward the and the shoulders, H engage the bearings, H. By this means the side sills are given additional stability, the stay'rod assisting in holding the side sills against buckling and also against twisting.

lVhen the rear door is in the closed-position and held by the latch mechanism, and the rear end of the forward door rests on the forward end'of the rear door, as already described, then the car bottom is in posi-' tion to receive and hold the load of material placed into the car body. When the latch mechanism is released by the cam, A or manually, at the dun'i iiing station, therear end of that door falls and the forward end turns on thev hinge FOd,;E wherebythe i curved forward edge. of the rear door is carried rearward from beneath the rear-edge of the forward door. Thus the rear edge of the forward dooris released, whereupon the rear end of said door falls, the door turn; ing on the forward hinge rod,,E Uponthe falling of the two doors, the material sup-. ported by the doors falls bygra-vity until the car is emptied. .Now the continued the. car brings the lower face of the forward door into engagement. with a stationary cam member, A located upon the track between the rails, A, A, and rising to asuflicient height to force'the rear ends of said door upward 'aylittle way above its normal or closed position.

tended horizontally far enough to maintain Said cam member. isexits engagement with theforward door until the rear doorhas in the same manner engaged the inclined portion of said cam and has been forced upward thereby. hen the rear door has'been thus forced upward, the arm, F engages the bevel face, F}, of the hook, E andforces said hook sidewise until said arm is above said hook, whereupon the latter moves sidewise into position beneath said arm. After this has been done, the

doors pass successively out of engagement with the cam member, A Assoon as the forward door is out of such engagement, ts

a falls ghtly until its'rearedge 4 again rests upon the ;-forward edge f th rear door; and as soon as A the rear door passes out of engagement with said cam member, the rear end of said door falls far enough to .cause the arm,.F to descend and rest fully upon the hook,- -F

By using the hingerod, E, at the middle of the .car to support the forward end of the 1 rear door and through the latter support the'rear endof the forward door,.the placing of the axles," C, is not limited relative to the'ends of the doors. Onthe contrary, the two pairs of axles may be so placedas to obtain any desired wheel base. V I urthermore, by'using stub axles in lieu of using single axles extending from one sidesill to the other, each discharge opening,

when the doors are down, is made longer, These larger openings are. of real practical In practice, these cars areimportance. moved 1n trains or trips, the movement across the discharge StLt10D b9l11g C0nt1niuous and rapid, in order that all the cars in the train may promptly discharge their loads and move away to make room'for another train. In practice, similar cars have been thus operated for the automatic weighing and unloading of as much'asqfifty tons of coal per minute. This operation, or any operation approaching this, in quantity, would be impossible if part-s of-loads tended forward "movement of c to renrain in the ears when the ears are A j passlng the discharge station. For such CllS- j charge,'the discharge opening mustbe; large enough for easy passing of large blocks of coal. Furthermore,,at t mes the coal of smaller sizes tends to paick and arch whereby the materialis supported by the hinge shafts,

v so shown,-

E and E, and the bell crank, F. 7

o By; extending the doors as low as the capacity and also the stability of the car are increased. The stability of the car onthe track is increased because the-load; is brought closer to the trackrails.

1; The bot-tom doors, the bottom of the car.

placedinto a rotary dump for sidewise-turm that the weightof,

E and E constitute I s al es be observed that thiscar may be operated with ing, the latch mechanisnrbeing held in en-.

gagement with the rear door and the forward door, E, b'eingheld by. the adjacentstub axles aga nst upward-1n0vement. The earmay-also betilted forward for end dumping; In that case the end wall may, if so desired, be hinged in the well-known man-'- ner to'permit the material.

I I claim asmy invention: 5

, 1. In a structure of the kind described,

the'conibinationof a car body havingside sills, twopairs of stub axles supported by saidisills and carrying said body, wheels carrying said axles, a hinge rod between and ready discharge of theparallel to the pairs of stub axles, a bottom door hinged. by one edge to said rod and extending thence rearward under the rear axles, and. mechanism. adaptedlto operate to secure and supportthe opposite "edge of said door whenthe latteris forced upward 7 into the closed position, substantially as described. I

2. In a structure of the kind described,

the combination of a car body having side sills, two pairs of stub axles supported by said sills and carrying said body, wheels carrying said axles, a. hingerod, located between andparallel to the pairs of stubaxles, a door hinged by its forward edge to said rod and extending under the axial line of the rear pair of stub axles and to the rear end of the car, mechanism at the rear end of the .car.for supporting the rear. edge of saiddoonand a second door hingedto the forward end of the car on a line which is horizontal and transverse to the length of said body and said door extending rearwardunder theaxialline ofthe forward pair of stub axles and resting on the 'forlit) ward'edgeof the rear door when said doors are in the closed position, substantially as described. V

8. In a structure of the kind described, the combination of a car bodyhaving side sills, two pairs ofstub axles supported'by said sills and carrying said body, wheels carrying said axles, a hinge rod located between and parallel to the axial lines of the stub axles, hinge members seated 'on and rising above said rod and having upper faces concentric with the axial line of said rod, a door secured by its forward edge to said hinge-members and extending underthe axial line of the rear pair of axles and to r the rear end of the car, mechanism atthe rear end ofthe car for supporting the rear edge of saididoor, and a second door hinged to the forward end of the car 'on a line which is horizontal and transverse to the length of said body and said door extending rearward under the axial line of the forward pair of stub axles and resting on the forward edge of the rear door when said doors arein the closed position, substantially as described. I

4. In a structure of the kind described, the combination of a car body having side sills, a pair of stub axles supported by said sills and supporting said body, wheels car'- rying said axles, a hinge rod supported by the car body, a bottom door coupled by one edge to saidhinge rod and extending thence rearward under said stub axles, and mec-hanlsm adapted to operate to secure and support the opposite edge of said door when i the latter is moved into the closed position,

substantially as described. I

In a' structure of the kind described, the combination of a car-body having side sills, two pairs of stub axles supported by said sills and supporting said body, wheels carrying said axles, a hingerod supported by the car body, arbottom door coupled byone edge to said hinge rod and extending thence rearward under a pair of said stub axles. and mechanism adapted to operate "to,

secure and support the opposite edge of saiddoor when the latter is moved into the closed position, substantially as'described.

6. In a structure of the kind described, the combination of a car body having side sills, two pairs of stub axles supported by said sills and supporting said body, wheels carrying said axles, doorsupport1ng means supported by the car body, a bottom door coupled by one edge to said supporting means and extending thence rearward under pair of said stub axles, and mechanism adapted to operate to secure andsupport the opposite edge of said door when the latteris' moved into the closed position, substantially'as described.

7. Ina structure 'otthe kind described,

sills, a pair of stubaxles supported-by said sills and, supporting said body, wheels cartom extending below the stub axles, and door securing mechanism, substantially as described. i

9. In a structure of the kind described, the combination ofa car body having side sills, a pair of stub axles supported by said sills and supporting said body, wheels car'- rying said axles, and a transversely hinged bottom extending below the stub axles, substantially as described.

' 10. In a structure of the kind described, the combination of a'body having-side sills, two pairs of stub axles supported by said sills, wheels carrying said axles, a'door extending below a pair of the stub axles and transversely hinged to the body, and door securing mechanism, substantially "as described. f 11. In a structure of the kind described, the combination of a body having'side sills, two pairs of stub axlessupported by saidsills, wheels'carrying said axles, a plurality of doors extending below the stub axles and transversely hinged to the'body, and door WIL I o. 'Mex MEY; V g

substantially as deiii the combination of a car body having'side 7 crying said axles, a transversely hinged bot- I 

